All subjects have completed the study intervention phase. The projected submission date of the final report is September 30, 2001. Analysis of the prospectively collected study data is underway. We have acquired the HCFA Denominator Files, and Inpatient Files, and Part B Provider Service Files for the years 1997, 1998, and 1999. The extraction of 1997, 1998, and 1999 Part B Provider Service Files is almost complete and the analysis of the Inpatient Files is underway.